One of the more romantic professions in the navy, or at least what seems to be from the outside, is serving on a submarine. The thrill of sneaking up on enemy boats undetected and sending them to feed the fishes is second to none. And this was even more so in the time of WWII since the sonar technology was far from perfect and a single U-boat could literally sink whole fleets. Thanks to Silent Hunter Mobile, you can find out how it would be to control one yourself right from the comfort of your iPhone.